Louisiana Industrial Electrical Technician Exam
Questions And Correct Answer with Rational
(100% verified answer) Q & A 2026 /Instant
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1. What is the primary purpose of a circuit breaker?
A. Store electrical energy
B. Increase voltage
C. Protect circuits from overcurrent
D. Convert AC to DC
Answer: C
Rationale: Circuit breakers interrupt current flow during overload or short circuits.
2. Ohm’s Law is expressed as:
A. P = VI
B. V = IR
C. I = P/V
D. R = VI
Answer: B
Rationale: Ohm’s Law defines voltage as current multiplied by resistance.
3. The unit of electrical power is:
A. Volt
B. Ampere
C. Watt
D. Ohm
,Answer: C
Rationale: Power is measured in watts.
4. A fuse protects a circuit by:
A. Increasing voltage
B. Breaking the circuit when current is excessive
C. Storing current
D. Amplifying signals
Answer: B
Rationale: Fuses melt under excess current to break the circuit.
5. Which device converts mechanical energy to electrical energy?
A. Transformer
B. Motor
C. Generator
D. Rectifier
Answer: C
Rationale: Generators produce electricity from mechanical input.
6. AC stands for:
A. Alternating Current
B. Applied Current
C. Active Circuit
D. Amplified Current
Answer: A
Rationale: AC periodically reverses direction.
7. DC current flows:
, A. In both directions
B. Randomly
C. In one direction only
D. Only in transformers
Answer: C
Rationale: DC maintains a single flow direction.
8. The function of a transformer is to:
A. Store power
B. Change voltage levels
C. Convert AC to DC
D. Increase resistance
Answer: B
Rationale: Transformers step voltage up or down.
9. The SI unit of current is:
A. Volt
B. Watt
C. Ampere
D. Joule
Answer: C
Rationale: Current is measured in amperes.
10. A short circuit occurs when:
A. Resistance increases
B. Current takes an unintended low-resistance path
C. Voltage decreases normally
D. Power is stable
Questions And Correct Answer with Rational
(100% verified answer) Q & A 2026 /Instant
download PDF
1. What is the primary purpose of a circuit breaker?
A. Store electrical energy
B. Increase voltage
C. Protect circuits from overcurrent
D. Convert AC to DC
Answer: C
Rationale: Circuit breakers interrupt current flow during overload or short circuits.
2. Ohm’s Law is expressed as:
A. P = VI
B. V = IR
C. I = P/V
D. R = VI
Answer: B
Rationale: Ohm’s Law defines voltage as current multiplied by resistance.
3. The unit of electrical power is:
A. Volt
B. Ampere
C. Watt
D. Ohm
,Answer: C
Rationale: Power is measured in watts.
4. A fuse protects a circuit by:
A. Increasing voltage
B. Breaking the circuit when current is excessive
C. Storing current
D. Amplifying signals
Answer: B
Rationale: Fuses melt under excess current to break the circuit.
5. Which device converts mechanical energy to electrical energy?
A. Transformer
B. Motor
C. Generator
D. Rectifier
Answer: C
Rationale: Generators produce electricity from mechanical input.
6. AC stands for:
A. Alternating Current
B. Applied Current
C. Active Circuit
D. Amplified Current
Answer: A
Rationale: AC periodically reverses direction.
7. DC current flows:
, A. In both directions
B. Randomly
C. In one direction only
D. Only in transformers
Answer: C
Rationale: DC maintains a single flow direction.
8. The function of a transformer is to:
A. Store power
B. Change voltage levels
C. Convert AC to DC
D. Increase resistance
Answer: B
Rationale: Transformers step voltage up or down.
9. The SI unit of current is:
A. Volt
B. Watt
C. Ampere
D. Joule
Answer: C
Rationale: Current is measured in amperes.
10. A short circuit occurs when:
A. Resistance increases
B. Current takes an unintended low-resistance path
C. Voltage decreases normally
D. Power is stable
